Detecting Double-Feeds - Fujitsu fi-4220C Operator's Manual

4.6 Detecting Double-feeds

"Double-feed" is a feeding error that occurs when two or more
sheets in the ADF paper chute are fed simultaneously into the
scanner.
You can set the scanner to detect double-feed, stop scanner
operation, and display an error message.
To set the scanner to detect double-feed, change the settings in the
[TWAIN Driver] dialog box.
The following shows the procedure for changing the settings in this
dialog box.
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4.6 Detecting Double-feeds

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